similar to: Ogg stream decoding

Thanks for the reply.. I am very new to this field (streaming players) have some experience in java/php/vb, however would like to know from you experts where/how to start...what is the best option, what I am looking at is something like the jorbis player; we simply place the url and it plays the stream...the idea is to cut off all the other unnecessary stuff, and to just get the simple code which

Hi, I am trying to implement ogg vorbis real time decoder on SHARC ADSP 21364 processor. I am writing my own version of the decoder using the documentation vorbis_I_spec.pdf from xiph.org. However I am facing certain hurdles in floor curve decoding during audio packet decode. In the spec it says that [cval] = read from packet using codebook number [so and so] in *scalar context*.(page no 43).

Hello Monty, Sorry for the wrong subject title last time. A little more clarification needed. When reading bit-by-bit, there is no MSb/LSb, just 'first bit' and 'last bit'. The Huffman tree is traversed from 'first bit' to last bit'. This is a conceptual layer above the bitpacker; all you need to know is what order the bits come out, which happens to be LSb-first.

The prospect of people actually putting B-format audio (via the panner or directly input) into Ogg/Vorbis brings an interesting challenge: What do we do with the audio after decoding it? The following sane options exist: A) Simply output the B-format audio B) Produce a downmix 1) Mono. 2) Stereo blumlein crossed pairs 3) Stereo UHJ 4) binaural C) Produce speaker feeds 1) Fully

Hello, I am currently developing a ogg vorbis decoding module for use in winlame (a LAME frontend), and I have some questions: To do a decoder I used most code in decoder_example.c, but I think there is something missing. I would be glad if someone could look at this code: http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/winlame/winlame/source/winlame/wlOggVorbisDecoderModule.cpp and

Hi, I've trying to decode a FLAC audio stream. I have a reader which sends raw byte data to my FLAC wrapper class. Only once the decode function below returns, the reader will send new data. Hence I want to decode until the stream is empty, but I will add new data to the stream once it is empty. *void **MyFlacCoder::**decode(char *data, int bytes) { mBuffer = input;

Thanks for a very quick and very good answer. Let me just double-check one thing: > To put multiple Ogg Opus packets in an Ogg page, all you need to do is > start a new segment for each Ogg Opus packet. There can be up to 255 > segments per page. For details, see the Ogg specification: > https://tools.ietf.org/html/rfc3533 So do I understand it correctly that a decoder will

Hello, I would like to "piggy-back" other data in an Ogg/Vorbis I physical stream (i.e. file) in a manner that does not conflict with specifications and existing decoders/players/editors etc. As far as I can see, I have some possible choices: 1 - Chaining a logical bistream at the end. If this is the way to go, two questions arise to begin with: q1a - How to identify this stream in a

Hi All, I downloaded vorbis-tools-1.0.1 from http://www.vorbis.com/download.psp for windows platform. It contains workspace for Ogg encoder. It seems Ogg decoder is not there. In Oggdec folder oggdec.c file is there. If I include this file in the workspace it gives some linking errors. Please tell me, how to download the current version of Ogg Vorbis decoder on Windows platform? Best

As it seems that the vorbis decoder is now stable with respect to format/features, would it be time to start thinking about a hardware implementation? I would be interested in pursuing this if some there is consensus on requirements. If there is some enthusiasm for it then a module could be set up on the opencores site for a gate-array decoder. cya, Andrew... --- >8 ---- List

Hi All, We are using speex decoder only for narrow band decoding. Quite often, even though source frame is not silence, decoded audio is silence. I wonder there is a problem in the way we uses speex decoder API. Basically, we initialize speex decoder only once and just reset the decoder before we decoding another file. Do we need to intialize speex decoder and destory decoder for each audio file

Hi, I've been looking at using speex over RTP. Section 3.3 of draft-ietf-avt-rtp-speex-05 states that: "For the purposes of packetizing the bit stream in RTP, it is only necessary to consider the sequence of bits as output by the Speex encoder [speex_manual], and present the same sequence to the decoder." So, I assume that I just pass the whole contents of the RTP packet (less the

I don't know if this is the right place to post this, but I ported a lossy delta update video compression algorithm to use the Ogg stream layer. The algorithm was written several years ago in high school to play video at about ~5 - 10 fps on their 33mhz 486 + turbo pascal machines becase writing link list palendrome programs was too easy. The codec does what it says (at least on an Intel

Hi, <p>> I have a question for you. If I want to write a vorbis client from scratch, > should it attempt to read the input file from start to finish, or should it > attempt to start at the end first > in order to use statistical analysis to optimize the conversion process? I have > been playing > around with oggenc and ogg123 and enjoying the way my music sounds, but I

Hi All, Currently I am investigating how interesting OGG is for me. The most important requirements are: - Decoding on embedded hardware, ARM7 or ARM9. - Mixing multiple audio streams/files on embedded hardware First of all how difficult is it to decode OGG on an ARM7/9 processor? I read that OGG decoding needs floating point support? Secondly I would like to know how many MIPS are needed to

Can some one help me from where i can get the OGG/VORBIS Decoder source code.From VORBIS website i've downloaded some source code,but it have several project files.i'm puzzled about that. Please let me know which one is correct or from where i can down load this code. Thanks in advace. Regards Chiranjeevi DISCLAIMER: The information contained in this e-mail message and in any

Jean-Marc Valin wrote: > > > The decoder will return -1 if it can't decode anything else, so you just > do something like: > > while(1) { > err = speex_decode_int(state, bits, pcm); > if (err==-1) > break; > output_data(pcm); > } I think I still didn't fully understand. As a test I encoded some frames (wideband, with quality set to 8),

Help-- I've been experimenting with the encoder, using lots of different types of music, and I'm floored by great sound quality of the ogg format. Here's my problem--- I prefer not to use the Windows graphical environment for encoding or decoding, regardless of how good the program (like dbPowerAMP), but I can't find a DOS commandline decoder for converting Ogg files back to

Help-- I've been experimenting with the encoder, using lots of different types of music, and I'm floored by great sound quality of the ogg format. Here's my problem--- I prefer not to use the Windows graphical environment for encoding or decoding, regardless of how good the program (like dbPowerAMP), but I can't find a DOS commandline decoder for converting Ogg files back to

Hi everyone, I think I just found a bug (which is easy to avoid if you use Speex the "standard" way). I'm writing a wrapper-dll in C# for Speex and it's up and running. However, I had some problem with the wrapper (Garbage Collector-related) so I found out that if I created a new decoder every run, everything worked smoothly. What I also discovered was that the sound quality